body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
}

.container {
  display: flex;
  margin-top: 0px;
}

.sidebar {
  background-color: #358;
  width: 20vh;
  padding: 20px;
  height:87vh;
}

.sidebar ul li:first-child {
  background-color: #679;
  border-radius: 10px;
}

.sidebar ul {
  list-style-type: none;
  padding: 0;
  margin: 0;
  margin-top: 100px;
  position: fixed;
  left: 35px;
}

.sidebar ul li {
  margin-bottom: 15px;
}

.sidebar ul li a {
  text-decoration: none;
  color: #eee;
  display: block;
  text-align: center;
  padding: 10px;
}

.content {
  flex-grow: 1;
  padding: 20px;
}

h1 {
  font-size: 24px;
  text-align: center;
  margin-bottom: 30px;
}

.info {
  margin-top: 50px;
  background-color: #f2f2f2;
  padding: 20px;
  margin-left: 60px;
  margin-right: 40px;
  height: auto;
  border-radius: 10px;
}

.info-row {
  display: flex;
  align-items: center;
  margin-bottom: 30px;
}

.info-label {
  width: 120px;
  margin-left: 50px;
}

.info-text {
  width: 350px;
  margin-left: 20px;
  height: 25px;
}

.sp {
    letter-spacing: 16px;
}

.btns {
  display: flex;
  justify-content: flex-end;
  margin-top: 0;
  margin-left: 240px;
}

.btns button {
  margin-left: 20px;
  padding: 5px 15px;
}

.image-row {
  position: relative;
}

.info-image {
  position: absolute;
  top: -260px; /* 调整图片与按钮之间的距离 */
  right: 160;
  width: 260px;
  height: auto;
  margin-left: 200px;
}

.banner {
  background-color: #003366;
  color: white;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 3vh;
}

.banner-title {
  font-weight: bold;
  font-size: 20px;
}

.welcome {
  color: white;
  text-decoration: none;
  margin-left: -20px;
  margin-right: 20px;
}